Saudi Arabia has borders covering over 4,300 km that are shared with seven countries. Such large borders pose many challenges for security and patrol. Thermal imagers are considered the most reliable means of threat detection, however, they are quite costly, which can prevent using them over large areas. This work discusses a multi-sensor acoustic and optical implementation for threat detection as an effort to reduce system cost. The acoustic sensor provides position and direction recognition by using a four microphone setup. The data analysis of field tests will be discussed in this work.

Munir M. El-Desouki, The National Ctr. for Electronics, Communications and Photonics (Saudi Arabia)Sultan Alghamdi, King Abdulaziz City for Science and Technology (Saudi Arabia)Mansour Alghamdi, King Abdulaziz City for Science and Technology (Saudi Arabia)